US Bridges

Kam HWY over Haiamoa Strm

Good

Honolulu County, Hawaii · 0.10MI S/Wailehua RD · Structure no. 003000830303604

Built
1922
103 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
16,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Haiamoa Strm is a concrete slab carrying Kam HWY over Haiamoa Strm in Honolulu County, Hawaii. It was built in 1922, so it is 103 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,500 vehicles a day, roughly 5% of them trucks, projected to reach 18,799 by 2025. The structure is 29 ft (8.9 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesKam HWY
CrossesHaiamoa Strm
Location0.10MI S/Wailehua RD
RouteU.S. Route 83
StateHawaii
Coordinates21.46227, -157.84293
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length29 ft (8.9 m)
Longest span26 ft (8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2017)
Projected traffic18,799 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Haiamoa Strm built?

It was built in 1922, making it 103 years old in 2025.

What condition is Kam HWY over Haiamoa Strm in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Kam HWY over Haiamoa Strm carry?

About 16,500 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Kam HWY over Haiamoa Strm?

The structure is 29 ft (8.9 m) long with a longest span of 26 ft (8 m) and a deck 26 ft wide.

Who owns Kam HWY over Haiamoa Strm?

It is owned by the State Highway Agency.